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June 2003 RadCon review of te Yaesu FT-857 in pdf format. Need login to yahoo group.

KG4JJH moxon assembly plan for the 50 Mhz in a pdf file

Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ

This HALO design is not ground dependent and can be mounted atop a section of PVC.

Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation

Some printable logbooks or logsheets, made to use whilst operating portable. Download free PDF files in landscape and portrait A4 Format.

Yaesu FT-100 Data (CAT) MiniDIN 8-Pin Connector

Compact and efficient magnetic loop antenna that cover from 40 to 10 meters project by G8ODE published by RSARS

The Wireless Institute of Australia (WIA) provides an official directory and database of Australian amateur radio repeaters, detailing their locations, frequencies, and operational status. The resource includes downloadable files in PDF and CSV formats, along with a _Google Earth KMZ_ file for visualizing repeater sites across Australia, including Amateur, CB, and Marine repeaters. It also references external resources for various digital modes such as _IRLP_, _Echolink_, _D-STAR_, P25, Fusion, and DMR, providing links to their respective information sites. The WIA repeater data is cross-referenced with the _ACMA database_ to ensure accuracy, with updates typically occurring twice a year. The directory employs a color-coding system, where purple indicates repeaters carrying the WIA broadcast or callback channels, and a 'W' status denotes operational repeaters with the weekly WIA broadcast. The resource also outlines policies for removing unlicensed or non-operational repeaters from the PDF listing after specific timeframes, while retaining them in the CSV file for potential reinstatement.

A PDF File to download and print, with a table of all menu options with values, default settings, description and a quick reference guide of the front panel menus

The Z Match is really a basic L Match consisting of a series capcitor and variable shunt inductor, coupled to the antenna using the RF transformer action.

A brick, some PVC tubing and a few other common hardware store items can be transformed into an effective Quick and Dirty RF-launcher for less than $25! By Michael Atlas, N7FC

Whether we are tuning up homebrew equipment, checking antenna VSWR, adjusting a linear amplifier, or just monitoring output power during a contest, almost all aspects of ham operation can use a power meter. Paul Wade W1GHZ

Fractal Quad Yagi Antenna by KF7BS published on 73 magazine October 99

Converting a ZETAGI B303 power amplifier for 50 MHz usage

The array consists of 7 vertical antennas arranged as 6 verticals in a hexagon shape plus 1 additional vertical in the center of the hexagon

Official Icom comparison chart for IC 756 PRO III, IC-7600, IC-7700 and IC-7800

Yaesu FT-817 and MFJ-616 speech intelligibility enhancer product review & short takes columns from QST Magazine

By Alfred T Yerger II WA2EHI, in this PDF file explain how to remote your rig via the internet by using HRD Ham Radio Deluxe and skype

To save a little time from calculating and experime nting when winding toroid cores here a chart of the most commonly used cores

The document provides a detailed guide on modifying an inverted-L antenna to include the 160 meters band. This enhancement allows amateur radio operators to utilize the lower frequency effectively, which is crucial for long-distance communication, especially during the night. The inverted-L design is popular due to its compact size and ease of installation, making it suitable for various environments. By adding top band capabilities, operators can engage in DXing and contesting on 160m, expanding their operational range and opportunities. The guide includes practical tips and considerations for construction, ensuring that the antenna maintains its performance across the extended frequency range. It discusses the necessary adjustments and materials required for the modification, along with potential challenges and solutions. Whether you are a seasoned operator or a beginner, this project can enhance your station's capabilities, allowing for more versatile operations and improved signal quality on the 160m band.

ARRL Laboratory Expanded Test-Result Report ICOM IC-746 Pro

Take the mystery and mystique out of standing wave ratio. QST Article by K5DVW

The Skeleton Slot Antenna Revisited by Bobby Brainwave, N3VGS PDF File.

Radio communication equipment installation recommendations

A free to download and print, paper log sheet useful for portable amateur radio operations, in a PDF file.

How to check for propoer connector installation by using a common multimeter to verify conductivity and resistance.

January 1955 QST article by W5DQV about constructing a Cubical Quad antenna for 14MHz PDF File

TAHO.EXE, an open-source software, facilitates the creation of APRS maps for _UI-View_ by converting free data from _OpenStreetMap_ into the required *.JPG and *.INF file formats. This utility, developed by Dimitri Junker with specific UI-View format support added at the request of HB9DTX, streamlines the process of integrating detailed geographical information into the _UI-View_ platform. It operates on Windows, generating map files with border coordinates in just a few clicks, eliminating the tedious manual creation of *.INF files for custom maps. This converter allows UI-View users to leverage the continuously updated and community-contributed data of OpenStreetMap, which often surpasses commercial map quality in specific regions. The process is straightforward, with a detailed step-by-step guide available on the OpenStreetMap wiki, translated into French and German. TAHO.EXE significantly enhances the utility of UI-View by providing a readily accessible and continuously improving source of detailed, current geographical maps for displaying APRS station positions and objects.

Backpacking, boating or mountaintopping ? Invest your time and pack this novel directional gain antenna on your next expedition

A PDF presentation of a home made moxon antenna for 50 MHz 70 MHz and 144 Mhz. The project is mainly out of surplus plastic Plumbing pipes and clips etc, and also details of how the dimensions were calculated.

Article using a full wave delta loop antenna at low height, feeding methods, performance reports on 1984 QST article by W1FB and W1SE

This manual provides the technical necessary for servicing the VX-6R Yaesu Transceiver

The circuit described below will substantially reduce or completely eliminate interference from almost any local source whilst leaving the wanted signal relatively unaffected, even though it may be on the same frequencey by TREVOR, G3ZYY

ARRL Lab notes, article by WB8IMY on helping choosing the best transceiver for your needs.

The document is a technical guide on designing RF filters for radio frequency applications. It covers topics such as interference suppression, band-pass filters, and low pass filters, with a focus on filter design and circuit filters.

Icom IC-7000 product review

Pipe your signals to 146 and 445 MHz with one antenna!

Why twinlead isn't necessarily a low loss feed line.

Cheap UHF antenna plans for 2 meters and up including 421 1296 and 902 Mhz

Homebrewing a mic boom headset for the Yaesu FT 897 and 857 transceivers

JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.

IC820H or other Icom Radios Soundcard interface for VHF EME use by DF9CY

By Jim Davey WA8NLC

Original Tuna-Tin 2 QRP CW transceiver article by W1CER

A simple VHF vertical aerial for the home station

The Considerate Operator's Guide shows frequencies generally recognized for certain modes or activities (all frequencies are in MHz).

Using MFSK mode, 98 Kb PDF doc, taken from QST January 2001

Table of Frequency Allocations as published by the Federal Register and codified in the Code of Federal Regulations remains the legal source material.